Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christian upon » christians upon, christian union, christianity upon
1918 germany » 8 germany
bief history » brief history, brief hystory, imf history
16th century » 18th century, 19th century, 17th century
ref history » reef history, brief history, imf history
11 germany » 11 german, 8 germany, 5 germany

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %christian upon conversations %((((11 germany) OR (1918 germany))) OR (7 germany)) %((ref history) OR (bief history)) %2020 16th century%22.
• Adding a wildcard symbol may retrieve word variants: %christian upon conversations %((((11 germany) or (1918 germany))) or (7 germany)) %((ref history) or (bief history)) %2020 16th century%22*.